Intake duct mounting structure

Abstract

Provided is an attachment structure for an intake duct (1) in which a downward-facing second opening (11) is attached so as to communicate with an upward-facing first opening (21) of an air-conditioning device (2) installed in a vehicle. The intake duct (1) has a flat plate-form ear part (14) extending in a direction away from the second opening (11) in a part of the periphery of the second opening (11). The air-conditioning device (2) has: a clip part (23), which is provided in a part of the periphery of the first opening (21) and into which the ear part (14) is inserted when the intake duct (1) is attached to the air-conditioning device (2) along a horizontal direction; and a regulating part (24) that is provided to a position other than a part of the periphery of the first opening (21), the regulating part (24) regulating movement of the intake duct (1) in the direction opposite to the direction in which the ear part (14) is inserted.

Description

Technical Field

[0001] This invention relates to an attachment structure of an intake duct attached to an air conditioner mounted on a vehicle.

Background Art

[0002] Conventionally, an intake duct that communicates the outside space of the vehicle with the inside of the air conditioner is attached to the air conditioner mounted on the vehicle. For example, Patent Document 1 discloses a structure in which a fitting portion of the intake duct is externally fitted, engaged, and screwed from above the air conditioner to an upward inlet of the air conditioner, thereby attaching the intake duct to the air conditioner.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the attachment structure disclosed in Patent Document 1, it is necessary to fit the fitting portion of the intake duct to the inlet of the air conditioner from above the inlet of the air conditioner. Therefore, for example, when it is difficult to attach the intake duct from above the air conditioner due to the relationship with the arrangement of the vehicle body panel and peripheral parts or the relationship with the production equipment, it is necessary to attach the intake duct from a direction other than above the air conditioner, and the workability of the attachment may deteriorate.

[0005] This invention was conceived in view of the above-mentioned problems, and one of its objectives is to provide an intake duct mounting structure that allows the intake duct to be attached to the upward-facing opening of an air conditioning unit from a direction other than upward, without worsening workability. However, this is not the only objective; another objective of this invention is to achieve effects and advantages that cannot be obtained by conventional technology, which are derived from the various configurations shown in the embodiments for carrying out the invention described later. [Means for solving the problem]

[0006] The intake duct mounting structure disclosed can be realized in the embodiments or applications disclosed below, and solves at least some of the above problems. The intake duct mounting structure disclosed herein is an intake duct mounting structure that is mounted on an air conditioning unit mounted on a vehicle such that a downward-facing second opening communicates with an upward-facing first opening, wherein the intake duct has flat, plate-shaped lugs extending in a direction away from the opening of the second opening in a part of the periphery of the second opening. The air conditioning unit is configured to include a flat, plate-shaped receiving portion extending in a direction away from the opening of the first opening in a part of the periphery of the first opening, and a pressing portion that presses down on the lugs from above between the receiving portion and the receiving portion, and has a clip portion into which the lugs are inserted when mounting the intake duct to the air conditioning unit in the horizontal direction, and a restricting portion provided at a position other than the part of the periphery of the first opening that restricts the movement of the intake duct in the direction opposite to the insertion direction of the lugs. [Effects of the Invention]

[0007] According to the disclosed intake duct mounting structure, the downward-facing second opening of the intake duct can be attached to the upward-facing first opening of the air conditioning unit from a direction different from the direction in which the first opening opens, i.e., from a direction along the horizontal direction, without worsening workability. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of the main part of a vehicle to which the intake duct mounting structure according to the embodiment is applied, viewed from the rear and left. [Figure 2] Figure 1 is a top view of the outside air intake portion of the air conditioning unit equipped with the mounting structure shown in Figure 1. [Figure 3] Figure 1 is a front view of the intake duct provided by the mounting structure. [Figure 4] Figure 3 is a bottom view of the intake duct, with the gasket omitted. [Figure 5] Figure 3 is an enlarged perspective view of the intake duct, showing section X in Figure 1 viewed from the rear and left. [Figure 6] This is a side view of section Y in Figure 1, seen from the left. [Figure 7] Figure 2 is an enlarged perspective view of the air conditioning system, showing section X in Figure 1 viewed from the rear and left. [Figure 8] This is a side view of section X in Figure 1, seen from the rear. [Modes for carrying out the invention]

[0009] The mounting structure of the intake duct as an embodiment will be described with reference to the drawings. The embodiments shown below are merely illustrative, and there is no intention to exclude various modifications or applications of techniques not explicitly shown in the embodiments below. Each component of this embodiment can be modified in various ways without departing from its spirit. Furthermore, components can be selected or combined as needed.

[0010] In the following description, the forward direction of the vehicle is defined as "front," and the opposite direction as "rear." Left and right are defined relative to the vehicle facing forward, and the left and right directions are also called the "vehicle width direction." The vehicle width direction is perpendicular to the longitudinal direction, and the direction perpendicular to both the vehicle width direction and the longitudinal direction is defined as the vertical direction. Note that the vehicle width direction and the longitudinal direction are directions included in the "horizontal direction" of the claim. The "horizontal direction" here is defined relative to the state in which the vehicle is stopped on a flat road surface, but it does not have to be strictly horizontal and may include directions that are slightly inclined with respect to the horizontal direction. Regarding the definition of direction in the embodiments, the direction of the components and parts constituting the intake duct mounting structure means the direction when mounted on the vehicle (when the intake duct is attached to the air conditioning unit), unless otherwise specified.

[0011] [1. Structure] Figure 1 shows the main parts of a vehicle to which the mounting structure of the intake duct 1 of this embodiment (hereinafter simply referred to as the "mounting structure") is applied. The mounting structure is a structure to which the intake duct 1 is attached to the upward-facing outside air inlet 21 (first opening) of the air conditioning unit 2 mounted on the vehicle, so as to communicate with the downward-facing exhaust port 11 (second opening) of the intake duct 1. Hereinafter, the state in which the intake duct 1 is attached to the air conditioning unit 2 will be referred to as the "mounted state". This mounting structure is a structure to which the intake duct 1 can be attached to the air conditioning unit 2 mounted on the vehicle from the horizontal direction (lateral direction).

[0012] The air conditioning unit 2 is an HVAC (Heating Ventilation and Air Conditioning) system configured to achieve internal air circulation and external air intake. The air conditioning unit 2 is mounted on the vehicle, for example, by being fixed to the rear side of a vehicle body panel 3 (e.g., a cowl inner panel) that is extended along the width and vertical directions of the vehicle.

[0013] The air conditioning unit 2 is provided with an outside air intake port 21 from which air is introduced from outside (front) of the vehicle body panel 3 when outside air is introduced, and an inside air intake port 22 from which air is introduced from inside (rear) of the vehicle body panel 3 when inside air is circulated. The outside air intake port 21 is provided on the upper part of the air conditioning unit 2 and, as described above, opens upward and communicates with the exhaust port 11 of the intake duct 1. As shown in Figure 2, the perimeter 21e of the outside air intake port 21 in this embodiment is substantially rectangular and annular when viewed from the opening direction, and has a pair of left and right first side edges 21ea extending in the front-rear direction and a pair of front and rear first end edges 21eb extending in the vehicle width direction. Hereinafter, the perimeter 21e of the outside air intake port 21 will also be called the first perimeter 21e. Also, of the pair of first end edges 21eb, the rearmost edge will also be called the first rear end edge 21eb. The first perimeter 21e has a uniform plate thickness.

[0014] The interior air intake 22 is a part that forms an opening for introducing air from inside the vehicle body panel 3, and for example, as shown in Figure 1, it opens rearward below the exterior air intake 21. The air conditioning unit 2 may have a damper (not shown) built in to adjust the ratio of air introduced from each of the intake 21 and 22. The air conditioning unit 2 may also have a blower for drawing air into the air conditioning unit 2, a cooling unit for cooling the drawn-in air, and a heater unit (none of which are shown) for heating the drawn-in air built in.

[0015] The intake duct 1 is a pipe that connects the space in front of the vehicle body panel 3 (outside the vehicle) to the outside air inlet 21, and has an intake port 12 on the upstream side of the airflow and an exhaust port 11 on the downstream side of the airflow. The intake port 12 is an opening that communicates with the space in front of the vehicle body panel 3 through a through hole (not shown) that penetrates the vehicle body panel 3 in the front-rear direction, and opens forward as shown in Figure 3. The opening of the intake port 12 may be lattice-shaped to suppress the entry of foreign objects (e.g., rats or debris) into the intake duct 1.

[0016] Around the intake port 12, a flange portion 13 extending in a direction away from the opening of the intake port 12 along the vehicle width direction is provided. In the flange portion 13, a mounting hole 13h penetrating in the front-rear direction is provided. The mounting hole 13h is a hole through which a stud bolt 3s (see FIG. 1) protruding rearward from the vehicle body panel 3 is inserted. For example, as shown in FIG. 3, it has a rounded rectangular shape that is long in the vertical direction. The intake port 12 is fixed to the vehicle body panel 3 by fixing the flange portion 13 to the vehicle body panel 3 with the stud bolt 3s inserted through the mounting hole 13h and a clip 3c.

[0017] As described above, the exhaust port 11 is an opening that opens downward and communicates with the outside air introduction port 21. The periphery 11e of the exhaust port 11 in the present embodiment forms a substantially rectangular annular shape as viewed from the opening direction, and has a pair of left and right second side edges 11ea extending in the front-rear direction and a pair of front and rear second end edges 11eb extending in the vehicle width direction. Hereinafter, the periphery 11e of the exhaust port 11 will also be referred to as the second periphery 11e. Also, among the pair of second end edges 11eb, the edge located rearward will also be referred to as the second rear end edge 11eb. The second periphery 11e also has a uniform plate thickness.

[0018] As shown in FIG. 3, a packing 16 is attached to the second periphery 11e. The packing 16 has an annular shape with an opening having the same shape as the opening of the exhaust port 11, and is pressure-bonded between the first periphery 21e and the second periphery 11e in the mounted state. Further, as shown in FIG. 1, a pad 17 for absorbing noise coming in from outside the vehicle may be attached to the rear surface of the portion connecting the intake port 12 and the exhaust port 11 in the intake duct 1.

[0019] As a mounting structure, the intake duct 1 has an ear portion 14 extending from the exhaust port 11. Further, the air conditioner 2 has a clip portion 23 into which the ear portion 14 is inserted and a restricting portion 24 provided at a position different from the clip portion 23. The intake duct 1 included in the mounting structure of the present embodiment is further provided with an annular portion 15 that engages with the restricting portion 24.

[0020] When attaching the intake duct 1 to the air conditioning unit 2, the ear portion 14 is inserted into the clip portion 23 from rear to front, and the movement of the ear portion 14 in the opposite direction to the insertion direction (i.e., rear) is restricted by the restricting portion 24, thereby attaching it to the air conditioning unit 2. In this way, the exhaust port portion 11 of the intake duct 1 is attached to the outside air inlet portion 21 of the air conditioning unit 2 from a direction along the horizontal direction, rather than from the direction in which the outside air inlet portion 21 opens (i.e., upward). As a result, even if it is difficult to attach the intake duct 1 by a simple operation such as placing the intake duct 1 on top of the air conditioning unit 2 due to the arrangement of the air conditioning unit 2 and the vehicle body panel 3, the arrangement of the intake duct 1 and surrounding parts of the air conditioning unit 2, or the production equipment, the intake duct 1 can be attached to the air conditioning unit 2 without worsening workability.

[0021] As shown in Figure 4, the ear portion 14 provided on the intake duct 1 is a flat plate shape that extends in a direction away from the opening of the exhaust port portion 11 in a part of the second circumference 11e. In this embodiment, the ear portion 14 is provided on each of the left and right pairs of second side edges 11ea of ​​the second circumference 11e. When viewed from the direction of the opening of the exhaust port portion 11, the ear portion 14 has a pentagonal shape with one corner of a rectangle cut off at an angle, and is formed with the same plate thickness as the plate thickness of the second side edge 11ea. The left ear portion 14 of the exhaust port portion 11 extends to the left, and the right ear portion 14 of the exhaust port portion 11 extends to the right, with the corner that is cut off at an angle being the rear corner furthest from the opening.

[0022] In this embodiment, the front-to-back positions of the left and right ear portions 14 are identical, and their shapes are symmetrical. The ear portions 14 may be integrated with the second circumference 11e, or they may be separate parts attached later. The ear portions 14 shown in Figure 4 are integrated with the second circumference 11e, and there is no boundary between them; therefore, it can be said that the ear portions 14 are formed by enlarging a part of the second circumference 11e in a direction away from the opening.

[0023] As described above, the annular portion 15 is the part that engages with the restricting portion 24, and is provided at a position that overlaps vertically with the position where the restricting portion 24 is provided. In this embodiment, the annular portion 15 is provided at two locations on the second rear edge 11eb. The two annular portions 15 are spaced apart from each other in the vehicle width direction and have the same shape. As shown in Figure 5, each annular portion 15 extends rearward from the second rear edge 11eb and then extends downward (bends), forming an L-shape when viewed from the vehicle width direction. Each annular portion 15 has an engagement hole 15h that penetrates in the direction along the insertion direction of the lug portion 14, i.e., in the front-rear direction, in the planar portion 15a that extends downward.

[0024] Furthermore, a rib 15r may be provided at the base of the annular portion 15 to reinforce the annular portion 15. In the example shown in Figure 5, three roughly triangular ribs 15r, viewed from the vehicle width direction, are arranged at intervals in the left-right direction, straddling the rear surface portion of the intake duct 1 (the portion below the pad 17) and the second rear end edge 11eb. In addition, the annular portion 15 only needs to be provided with a flat portion 15a extending in the vertical and left-right directions and an engagement hole 15h penetrating the flat portion 15a, but a flange 15f may be provided surrounding the left, right, and lower sides of the flat portion 15a.

[0025] As shown in Figure 1, the clip portion 23 provided on the air conditioning unit 2 is provided at a position that overlaps vertically with the position where the ear portion 14 is provided. In this embodiment, the clip portion 23 is provided on each of the pair of first side edges 21ea of ​​the first circumference 21e, corresponding to the position of the ear portion 14 described above. In this embodiment, as shown in Figure 2, the front-to-back positions of the left and right clip portions 23 are the same, and their shapes are also symmetrical.

[0026] Each clip portion 23, as shown in Figures 2 and 6, has a flat receiving portion 23a and a pressing portion 23b that presses down on the ear portion 14 from above between the receiving portion 23a and the receiving portion 23a. The receiving portion 23a extends in a direction away from the outside air inlet portion 21 in a part of the first circumference 21e and forms a plane flush with the first circumference 21e. In this embodiment, the receiving portion 23a is provided on the first side edge 21ea corresponding to the position of the ear portion 14, the receiving portion 23a on the left side of the outside air inlet portion 21 extends to the left, and the receiving portion 23a on the right side of the outside air inlet portion 21 extends to the right.

[0027] The shape of the receiving portion 23a is not particularly limited, but for example, as shown in Figure 2, it has a roughly trapezoidal shape when viewed from above and is formed with the same thickness as the first perimeter 21e. The receiving portion 23a may be integrated with the first perimeter 21e or it may be a separate part that is attached later. The receiving portion 23a shown in Figure 2 is integrated with the first perimeter 21e and there is no boundary between them, so it can be said that the receiving portion 23a is formed by expanding a part of the first perimeter 21e in the direction away from the opening.

[0028] The retaining portion 23b is provided so as to overlap at least a part of the receiving portion 23a in the vertical direction. The shape of the retaining portion 23b is not particularly limited, but for example, as shown in Figure 6, it is a flat plate shape that extends in the front-rear direction and is parallel to the receiving portion 23a, at a position separated above the receiving portion 23a. The vertical distance between the retaining portion 23b and the receiving portion 23a is set to be at least greater than the thickness of the ear portion 14. Preferably, this distance is set to be smaller than the sum of the thickness of the ear portion 14 and the thickness (vertical dimension) of the packing 16 in the state before installation.

[0029] The clip portion 23 of this embodiment further includes a connecting portion 23c that connects the front end of the pressing portion 23b and the receiving portion 23a, and a slanted portion 23d that is continuously provided at the rear end of the pressing portion 23b. In other words, the clip portion 23 of this embodiment, with the four portions 23a to 23d described above, is U-shaped and opens towards the rear when viewed from the vehicle width direction.

[0030] The connecting portion 23c is a part erected from the receiving portion 23a and has the function of positioning the pressing portion 23b above the receiving portion 23a. Note that the connecting portion 23c is not essential; for example, the front end of the pressing portion 23b may be curved downward toward the receiving portion 23a. In other words, the pressing portion 23b may also serve the function of the connecting portion 23c.

[0031] The inclined portion 23d is a part that has a guide function to guide the ear portion 14 to the pressing portion 23b, and is a flat plate shape that forms an inclination that moves further away from the receiving portion 23a as it goes towards the rear. In other words, the inclined portion 23d is inclined such that the distance from the receiving portion 23a becomes narrower as it goes towards the back (front) side in the insertion direction. The inclined portion 23d has the same plate thickness as the pressing portion 23b, and its length in the left-right direction is also the same as the pressing portion 23b.

[0032] The presence of the inclined portion 23d allows the ear portion 14 to be inserted into the clip portion 23 while moving forward and downward along the slope of the inclined portion 23d when attaching the intake duct 1 to the air conditioning unit 2, as shown by the black arrows in Figure 6. This prevents the packing 16 from peeling off the exhaust port portion 11 by ensuring it adheres tightly to the outside air inlet portion 21 when attached to the air conditioning unit 2, and the guide function makes the installation work easier. In Figure 6, the intake duct 1 before installation is shown by a dashed line. The installation direction of the intake duct 1 in this embodiment is not strictly horizontal, as shown by the black arrows. When the ear portion 14 is along the inclined portion 23d, it is slightly diagonally downward, and when it reaches the retaining portion 23b, it becomes horizontal (forward).

[0033] The restricting portion 24 is provided at a position on the first circumference 21e other than the portion where the clip portion 23 is provided. In this embodiment, since the restricting portion 24 engages with the annular portion 15, as shown in Figure 2, it is provided at two locations on the first rear edge 21eb of the first circumference 21e. The two restricting portions 24 are provided spaced apart from each other in the vehicle width direction to correspond to the two annular portions 15 and have the same shape. As shown in Figure 7, each restricting portion 24 has a support surface portion 24a extending rearward from the first rear edge 21eb and a hooking claw 24b partitioned by a slit 24s provided on the support surface portion 24a. In other words, the restricting portion 24 can also be described as a claw portion having a hooking claw 24b.

[0034] The restricting portion 24 is inserted into and engaged with the engagement hole 15h of the annular portion 15. The support surface portion 24a is, for example, substantially rectangular when viewed from above. The widthwise dimension of the support surface portion 24a is set to be smaller than the widthwise dimension of the engagement hole 15h of the annular portion 15, as shown in Figure 8. A rib 24r may be provided at the base of the support surface portion 24a to reinforce the support surface portion 24a and restrict rattle of the intake duct 1 in the widthwise direction.

[0035] As shown in Figure 7, the slit 24s is U-shaped, opening to the rear, and penetrates the support surface 24a in the vertical direction. That is, when viewed from above, the slit 24s is a combination of two straight, narrow elongated holes extending in the front-to-back direction and one straight, narrow elongated hole extending in the left-to-right direction, connecting the front ends of these two elongated holes. The hooking claw 24b is located inside the slit 24s.

[0036] The hooking claw 24b is continuous with the support surface portion 24a only at its rear end 24be, its lower surface is flush with the lower surface of the support surface portion 24a, and its upper surface protrudes above the upper surface of the support surface portion 24a. The hooking claw 24b has a cantilever shape with the rear end 24be, which is continuous with the support surface portion 24a, as the fixed end, and is elastically able to bend downward with the rear end 24be as the base end. When viewed from the vehicle width direction, for example, the hooking claw 24b has a mountain shape with the central part in the front-rear direction protruding the most upward. As shown in Figure 8, the most upwardly protruding part of the hooking claw 24b is located above the engagement hole 15h of the annular portion 15 when installed.

[0037] When attaching the intake duct 1 to the air conditioning unit 2, the engagement hole 15h of the annular portion 15 of the intake duct 1 is inserted into the restricting portion 24 of the air conditioning unit 2. At this time, the hooking claw 24b comes into contact with the upper end surface of the engagement hole 15h and is pushed downward, causing the rear end 24be to be elastically deformed downward with its base end, and the annular portion 15 moves further inward in the insertion direction, returning to its original position. As a result, the hooking claw 24b comes into contact with the annular portion 15 from the rear and engages with the annular portion 15. Therefore, the rearward movement of the annular portion 15 is restricted, and the displacement of the intake duct 1 in the direction opposite to the insertion direction is restricted.

[0038] [2. Action, Effects] (1) According to the above-described mounting structure, the intake duct 1 can be attached to the air conditioning unit 2 from a direction along the horizontal direction by the ear portion 14 provided on the intake duct 1 and the clip portion 23 and restricting portion 24 provided on the air conditioning unit 2. Therefore, even if the intake duct 1 cannot be attached to the air conditioning unit 2 from above, the intake duct 1 can be attached to the air conditioning unit 2 without worsening workability.

[0039] For example, as shown in Figure 1, if a stud bolt 3s is provided that protrudes rearward from the vehicle body panel 3, the flange portion 13 and the stud bolt 3s may interfere with each other when the intake duct 1 is attached to the air conditioning unit 2 from above. However, with the above-described mounting structure, as described above, the intake duct 1 can be attached to the air conditioning unit 2 from rearward towards front. Therefore, the intake duct 1 can be easily attached to the air conditioning unit 2 mounted on the vehicle without interference between the flange portion 13 and the stud bolt 3s during installation.

[0040] Furthermore, in the above-described mounting structure, the ear portion 14 is pressed down from above by the retaining portion 23b of the clip portion 23. This restricts the upward movement of the intake duct 1. Also, when the ear portion 14 is inserted into the clip portion 23, the restricting portion 24 can restrict the movement of the intake duct 1 in the opposite direction to the insertion direction. In other words, with the above-described mounting structure, the installation of the intake duct 1 to the air conditioning unit 2 is completed simply by inserting the ear portion 14 into the clip portion 23, thus making the installation work of the intake duct 1 easy.

[0041] (2) The intake duct 1 is provided with an annular portion 15 having an engagement hole 15h that penetrates in the insertion direction. The restricting portion 24 of the air conditioning unit 2 is a claw portion that is inserted into and engages with the annular portion 15 of the intake duct 1. With the above-described mounting structure, the movement of the intake duct 1 can be restricted by the simple configuration of the annular portion 15 and the restricting portion 24. Thus, the complexity of the configuration of the intake duct 1 and the air conditioning unit 2 can be suppressed.

[0042] (3) Furthermore, if the clip portion 23 is provided with a slanted portion 23d, when attaching the intake duct 1 to the air conditioning unit 2, the ear portion 14 can be moved along the slope of the slanted portion 23d and guided between the receiving portion 23a and the pressing portion 23b. In other words, the guiding function of the slanted portion 23d makes it easier to insert the ear portion 14 between the receiving portion 23a and the pressing portion 23b, thus making the installation of the intake duct 1 easier. In addition, when attaching the intake duct 1 to the air conditioning unit 2, it is possible to prevent the packing 16 attached to the second circumference 11e of the exhaust port portion 11 from peeling off. Therefore, the packing 16 can be more securely positioned between the first circumference 21e and the second circumference 11e, so that the outside air inlet portion 21 and the exhaust port portion 11 can be connected in a more airtight manner.

[0043] In this embodiment, when the intake duct 1 is attached to the air conditioning unit 2, the ear portion 14 moves along the slope of the inclined surface portion 23d, causing the intake duct 1 to move slightly downward. At this time, the flange portion 13 of the intake duct 1 also moves slightly downward. However, as described above, the mounting hole 13h of the flange portion 13 has a rounded rectangular shape with width in the vertical direction, so even if the intake duct 1 moves slightly downward, interference between the flange portion 13 and the stud bolt 3s can be suppressed.

[0044] [3. Others] The mounting structure described above is just one example. The direction in which the intake duct 1 is attached to the air conditioning unit 2, i.e., the insertion direction, is not limited to the front-to-back direction. The insertion direction only needs to be at least in a direction along the horizontal direction. In this case, the arrangement of the lugs 14 of the intake duct 1 and the clips 23 and restricting parts 24 of the air conditioning unit 2 should be set according to the insertion direction.

[0045] The shapes of the exhaust port 11 of the intake duct 1 and the outside air inlet 21 of the air conditioning unit 2 are not limited to those described above. The exhaust port 11 and the outside air inlet 21 only need to be able to communicate with each other, and may be, for example, annular or elliptical annular.

[0046] The direction in which the ear part 14 and the receiving part 23a of the clip part 23 extend is not limited to the above. The ear part 14 only needs to extend in a direction at least separated from the opening of the exhaust port part 11. For example, it may extend in a direction slightly inclined in the vertical direction with respect to the vehicle width direction. Similarly, the receiving part 23a only needs to extend in a direction at least separated from the opening of the outside air inlet part 21. The directions in which the ear part 14 and the receiving part 23a extend may be different from each other.

[0047] The pressing part 23b of the clip part 23 only needs to be in a shape that can press the ear part 14 from above in the mounted state, and does not have to be a flat plate shape as described above. The inclined surface part 23d of the clip part 23 only needs to be inclined so that the distance from the receiving part 23a becomes narrower toward the inner side in the insertion direction, and does not have to be a flat plate shape as described above. Also, when the packing 16 is not attached to the intake duct 1, the inclined surface part 23d may be omitted.

[0048] The method of restricting the movement of the intake duct 1 by the restricting part 24 is not limited to the above. The restricting part 24 may, for example, restrict the movement of the intake duct 1 by directly locking the second rear end edge 11eb of the exhaust port part 11. In this case, the annular part 15 may be omitted.

Explanation of Reference Numerals

[0049] 1 Intake duct 2 Air conditioner 11 Exhaust port part (second opening part) 11e Second periphery (periphery of the second opening part) 14 Ear part 15 Annular part 15h Engagement hole 16 Packing 21 Outside air inlet part (first opening part) 21e First periphery (periphery of the first opening part) 23 Clip part 23a Receiving part 23b Pressing part [ 23d Inclined surface part 24 Restricting part

Claims

1. An intake duct mounting structure is provided in which a downward-facing second opening is installed in communication with an upward-facing first opening of an air conditioning unit mounted on a vehicle, The intake duct has a flat, plate-shaped lug portion that extends in a direction away from the opening of the second opening in a part of the periphery of the second opening, The aforementioned air conditioning system is The system comprises a flat plate-shaped receiving portion extending in a direction away from the opening of the first opening in a part of the periphery of the first opening, and a pressing portion that presses down on the lug portion from above between the receiving portion and the clip portion into which the lug portion is inserted when the intake duct is attached to the air conditioning unit in the horizontal direction, The intake duct has a regulating portion provided at a position other than the aforementioned part around the first opening, which restricts the intake duct from moving in the opposite direction to the insertion direction of the ear portion. An intake duct mounting structure characterized by the following.

2. The intake duct is provided at a position that overlaps vertically with the position where the restricting portion is provided, and has an annular portion having an engagement hole that penetrates in the insertion direction, The restricting portion of the air conditioning device is a claw portion that is inserted into the engagement hole of the annular portion during installation and then engages. The intake duct mounting structure according to claim 1, characterized in that

3. The intake duct has a packing fitted around the second opening, The packing is pressed between the periphery of the first opening and the periphery of the second opening with the ear portion inserted into the clip portion. The clip portion is inclined such that the distance from the receiving portion narrows as it goes further in the insertion direction, and includes a sloped portion on the far side where the pressing portion is continuously provided. An intake duct mounting structure according to claim 1 or 2, characterized in that it is a mounting structure for an intake duct according to claim 1 or 2.

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